Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid
The gold – palladium binary system electrode posited on the surface of screen-printed carbon electrodes exhibits electrocatalytic activity in the oxidation of dopamine and ascorbic acid. The effect is reflected in a decrease of overvoltage and an increase of oxidation current of organic compounds. T...
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| Format: | Article |
| Language: | English |
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Kazan Federal University
2018-03-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
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| Online Access: | https://kpfu.ru/dual-screen-printed-electrode-modified-by-gold_340053.html |
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| author | L.G. Shaidarova Y.A. Leksina I.A. Chelnokova M.A. Il'ina A.V. Gedmina H.C. Budnikov |
| author_facet | L.G. Shaidarova Y.A. Leksina I.A. Chelnokova M.A. Il'ina A.V. Gedmina H.C. Budnikov |
| author_sort | L.G. Shaidarova |
| collection | DOAJ |
| description | The gold – palladium binary system electrode posited on the surface of screen-printed carbon electrodes exhibits electrocatalytic activity in the oxidation of dopamine and ascorbic acid. The effect is reflected in a decrease of overvoltage and an increase of oxidation current of organic compounds. The possibility of simultaneous voltammetric determination of dopamine and ascorbic acid at dual screen-printed electrode modified by gold – palladium binary system has been established. A method of flow-injection amperometric determination of dopamine and ascorbic acid on this electrode has been introduced. A linear dependence of the response on analytes has been observed in the ranges from 5?10–11 to 5?10–4 M and from 5?10–10 to 5?10–4 M for dopamine and ascorbic acid, respectively. |
| format | Article |
| id | doaj-art-32f62e0db1a14ae9a0c3e4b414b84b87 |
| institution | DOAJ |
| issn | 2542-064X 2500-218X |
| language | English |
| publishDate | 2018-03-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета: Серия Естественные науки |
| spelling | doaj-art-32f62e0db1a14ae9a0c3e4b414b84b872025-08-20T02:56:11ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Естественные науки2542-064X2500-218X2018-03-0116014053Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acidL.G. Shaidarova0Y.A. Leksina1I.A. Chelnokova2M.A. Il'ina3A.V. Gedmina4H.C. Budnikov5Kazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaThe gold – palladium binary system electrode posited on the surface of screen-printed carbon electrodes exhibits electrocatalytic activity in the oxidation of dopamine and ascorbic acid. The effect is reflected in a decrease of overvoltage and an increase of oxidation current of organic compounds. The possibility of simultaneous voltammetric determination of dopamine and ascorbic acid at dual screen-printed electrode modified by gold – palladium binary system has been established. A method of flow-injection amperometric determination of dopamine and ascorbic acid on this electrode has been introduced. A linear dependence of the response on analytes has been observed in the ranges from 5?10–11 to 5?10–4 M and from 5?10–10 to 5?10–4 M for dopamine and ascorbic acid, respectively.https://kpfu.ru/dual-screen-printed-electrode-modified-by-gold_340053.htmlchemically modified electrodesgold – palladium binary systemdual screen-printed electrodeamperometric determination of dopamine and ascorbic acidflow-injection analysis |
| spellingShingle | L.G. Shaidarova Y.A. Leksina I.A. Chelnokova M.A. Il'ina A.V. Gedmina H.C. Budnikov Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid Учёные записки Казанского университета: Серия Естественные науки chemically modified electrodes gold – palladium binary system dual screen-printed electrode amperometric determination of dopamine and ascorbic acid flow-injection analysis |
| title | Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid |
| title_full | Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid |
| title_fullStr | Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid |
| title_full_unstemmed | Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid |
| title_short | Dual screen-printed electrode modified by gold – palladium binary system for flow-injection amperometric determination of dopamine and ascorbic acid |
| title_sort | dual screen printed electrode modified by gold palladium binary system for flow injection amperometric determination of dopamine and ascorbic acid |
| topic | chemically modified electrodes gold – palladium binary system dual screen-printed electrode amperometric determination of dopamine and ascorbic acid flow-injection analysis |
| url | https://kpfu.ru/dual-screen-printed-electrode-modified-by-gold_340053.html |
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